Cheap Mercedes-Benz CLS Power Steering Pump

It depends on the variant and model year. Earlier CLS models (C219, 2004–2010) with conventional hydraulic power steering do have a traditional power steering pump, but later CLS generations moved toward electric power steering (EPS), which has no hydraulic pump at all. If your CLS has electric power steering, there is no pump to replace — the fault will lie in the electric motor or control module instead, so confirm with a breaker or check your vehicle's steering system type before ordering.

Both years sit within the first-generation CLS (C219, 2004–2010), so fitment is more likely to be compatible than not, but engine size is the key variable — the pump fitted to a 3.0 V6 diesel is not necessarily the same unit as on a 5.0 V8 petrol, for example. Give the breaker your full registration so they can match by engine code rather than year alone. Never assume fitment without that check.

Yes, engine size and engine code genuinely matter here — larger or more powerful engines can require pumps with different pressure ratings or physical fittings. A pump from a 320 CDI will not necessarily interchange with one from a 500 or 55 AMG, even within the same generation. Always quote your engine code (found on the VIN plate or service history) to the breaker to ensure a proper match.

The C219 ran from 2004 to 2010 and the C218 from 2011 to 2018, and these are fundamentally different vehicles with different engineering — you should not assume any direct swap. Beyond that, the C218 generation introduced electric power steering on many variants, meaning it may not have a hydraulic pump at all. Confirm with the breaker exactly which steering system your C218 uses before sourcing any parts.

Trim level itself does not determine which pump is fitted — what matters is the engine variant and generation, not whether your car is an AMG Line, Sport, or entry-level specification. AMG Line and similar trims are primarily cosmetic and suspension-tuning packages and do not alter the hydraulic steering hardware. Focus on matching engine code and generation, and let the breaker cross-reference against your registration to be sure.

On older hydraulic CLS models (typically C219 generation), a failing pump can cause heavy steering, whining noises, or a warning light, and a used pump from a breaker is a common repair route. However, if your car has electric power steering — more likely on later C218 and C257 models — there is no pump to replace and the fault source will be different entirely. Have the steering system type confirmed before you start sourcing parts, and ask the breaker to check your registration to identify the correct component.